Speed bump

Okay kiddo, so a speed bump is a thing that is put on a road to slow down cars or other vehicles that are driving too fast. It's kind of like a big bump in the road that makes the car go up and down. When a car drives over a speed bump, it has to slow down to go over it because if it goes too fast, it could be really bumpy and uncomfortable for the people inside the car. So basically, a speed bump helps keep everyone safe by making sure cars go the right speed on the road. Does that make sense, little one?